Charge and Nuclear Dynamics Induced by Deep Inner-Shell Multiphoton Ionization of CH3I Molecules by Intense X-ray Free-Electron Laser Pulses
SCIE
SCOPUS
- Title
- Charge and Nuclear Dynamics Induced by Deep Inner-Shell Multiphoton Ionization of CH3I Molecules by Intense X-ray Free-Electron Laser Pulses
- Authors
- Motomura, K; Kukk, E; Fukuzawa, H; Wada, S; Nagaya, K; Ohmura, S; Mondal, S; Tachibanai, T; Ito, Y; Koga, R; Sakai, T; Matsunami, K; Rudenko, A; Nicolas, C; Liu, XJ; Miron, C; Zhang, YZ; Jiang, YH; Chen, JH; An; l, M; Kim, DE; Tono, K; Yabashi, M; Yao, M; Ueda, K
- Date Issued
- 2015-08-06
- Publisher
- AMER CHEMICAL SOC
- Abstract
- In recent years, free-electron lasers operating in the true X-ray regime have opened up access to the femtosecond-scale dynamics induced by deep inner-shell ionization. We have investigated charge creation and transfer dynamics in the context of molecular Coulomb explosion of a single molecule, exposed to sequential deep inner-shell ionization within an ultrashort (10 fs) X-ray pulse. The target molecule was CH3I, methane sensitized to X-rays by halogenization with a heavy element, iodine. Time-of-flight ion spectroscopy and coincident ion analysis was employed to investigate, via the properties of the atomic fragments, single-molecule charge states of up to +22. Experimental findings have been compared with a parametric model of simultaneous Coulomb explosion and charge transfer in the molecule. The study demonstrates that including realistic charge dynamics is imperative when molecular Coulomb explosion experiments using short-pulse facilities are performed.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/35511
- DOI
- 10.1021/ACS.JPCLETT.5B01205
- ISSN
- 1948-7185
- Article Type
- Article
- Citation
- JOURNAL OF PHYSICAL CHEMISTRY LETTERS, vol. 6, no. 15, page. 2944 - 2949, 2015-08-06
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